We measured the temperatures of the system while loading the Intel CPU using Prime95 and GTX780M using FurMark. We also recorded the temperatures with the system idling at the desktop. The ambient temperature was maintained at 20 degrees C for the duration of our tests.
These results are about what we would expect from the laptop. Both of the load temperatures are quite high but they shouldn't cause any longevity issues.
ASUS do some great gaminmg machines too, and they cost a lot less than Alienware, but at least Alienware put a lot of effort into the looks as well, which is important.
Great machine, I own one, been using it now for gaming for a month. runs a bit hot on my knee, so I use it more on a desk.
The problem with Alienware laptops, of which I have had many, is the hinges wear out so soon. If anything needs replacing it is absurd at costs.